Pathological center foliation with dimension greater than one
Abstract
In this paper we are considering partially hyperbolic diffeomorphims of the torus, with We prove, under some conditions, that if the all center Lyapunov exponents of the linearization of a \mbox{DA-diffeomorphism} are positive and the center foliation of is absolutely continuous, then the sum of the center Lyapunov exponents of is bounded by the sum of the center Lyapunov exponents of After, we construct a open class of volume preserving \mbox{DA-diffeomorphisms}, far from Anosov diffeomorphisms, with non compact pathological two dimensional center foliation. Indeed, each in this open set satisfies the previously established hypothesis, but the sum of the center Lyapunov exponents of is greater than the corresponding sum with respect to its linearization. It allows to conclude that the center foliation of is non absolutely continuous. We still build an example of a DA-diffeomorphism, such that the disintegration of volume along the two dimensional, non compact center foliation is neither Lebesgue nor atomic.
Cite
@article{arxiv.1705.05422,
title = {Pathological center foliation with dimension greater than one},
author = {J. S. Costa and F. Micena},
journal= {arXiv preprint arXiv:1705.05422},
year = {2017}
}